Tables and scroll bar question... Options

[fake_love]

I was wondering how to make the interests tables (general, music, movies...) thinner? I've tried codes like this:

<style type="text/css">
table table table {width:250px;}
td.text table, td.text table td {width:250px; padding:0px;}
</style>

but it only makes my about me and comments tables thinner and not the left side

& also how to get a scroll bar like the one on here:
http://myspace.com/blacklungg

and how to make the comments look like the ones on that myspace also..how it only shows some, but you can't scroll.
???
Sorry if its too much to ask...